Global Information Lookup Global Information

Pointwise information


In mathematics, the qualifier pointwise is used to indicate that a certain property is defined by considering each value of some function An important class of pointwise concepts are the pointwise operations, that is, operations defined on functions by applying the operations to function values separately for each point in the domain of definition. Important relations can also be defined pointwise.

and 26 Related for: Pointwise information

Request time (Page generated in 0.5724 seconds.)

Pointwise

Last Update:

In mathematics, the qualifier pointwise is used to indicate that a certain property is defined by considering each value f ( x ) {\displaystyle f(x)}...

Word Count : 770

Pointwise convergence

Last Update:

In mathematics, pointwise convergence is one of various senses in which a sequence of functions can converge to a particular function. It is weaker than...

Word Count : 1372

Pointwise product

Last Update:

In mathematics, the pointwise product of two functions is another function, obtained by multiplying the images of the two functions at each value in the...

Word Count : 830

Pointwise mutual information

Last Update:

In statistics, probability theory and information theory, pointwise mutual information (PMI), or point mutual information, is a measure of association...

Word Count : 1657

Uniform convergence

Last Update:

uniform convergence is a mode of convergence of functions stronger than pointwise convergence. A sequence of functions ( f n ) {\displaystyle (f_{n})} converges...

Word Count : 5073

Uniform boundedness principle

Last Update:

operators (and thus bounded operators) whose domain is a Banach space, pointwise boundedness is equivalent to uniform boundedness in operator norm. The...

Word Count : 4519

Dominated convergence theorem

Last Update:

{\displaystyle (S,\Sigma ,\mu )} . Suppose that the sequence converges pointwise to a function f {\displaystyle f} and is dominated by some integrable...

Word Count : 1947

Learning to rank

Last Update:

functions: the pointwise, pairwise, and listwise approach. In practice, listwise approaches often outperform pairwise approaches and pointwise approaches...

Word Count : 3789

Function space

Last Update:

set X into a vector space has a natural vector space structure given by pointwise addition and scalar multiplication. In other scenarios, the function space...

Word Count : 1177

Confidence and prediction bands

Last Update:

these confidence intervals constitute a 95% pointwise confidence band for f(x). In mathematical terms, a pointwise confidence band f ^ ( x ) ± w ( x ) {\displaystyle...

Word Count : 1008

Uniform limit theorem

Last Update:

well. This theorem does not hold if uniform convergence is replaced by pointwise convergence. For example, let ƒn : [0, 1] → R be the sequence of functions...

Word Count : 807

Equicontinuity

Last Update:

equicontinuous and converges pointwise to a function (not necessarily continuous a-priori). In particular, the limit of an equicontinuous pointwise convergent sequence...

Word Count : 3745

Limit of a sequence

Last Update:

called pointwise limit, denoted x n , m → y m pointwise {\displaystyle x_{n,m}\to y_{m}\quad {\text{pointwise}}} , or lim n → ∞ x n , m = y m pointwise {\displaystyle...

Word Count : 4510

Continuous function

Last Update:

(see microcontinuity). The formal definition and the distinction between pointwise continuity and uniform continuity were first given by Bolzano in the 1830s...

Word Count : 9404

Legendre polynomials

Last Update:

In mathematics, Legendre polynomials, named after Adrien-Marie Legendre (1782), are a system of complete and orthogonal polynomials with a vast number...

Word Count : 5385

Sequence space

Last Update:

turned into a vector space under the operations of pointwise addition of functions and pointwise scalar multiplication. All sequence spaces are linear...

Word Count : 3603

Taylor series

Last Update:

the function; but if the function is analytic then the series converges pointwise to the function, and uniformly on every compact subset of the convergence...

Word Count : 8238

Radiative equilibrium

Last Update:

{\displaystyle h_{\nu }=-\nabla \cdot \mathbf {F} _{\nu }} . They define (pointwise) monochromatic radiative equilibrium by ∇ ⋅ F ν = 0 {\displaystyle \nabla...

Word Count : 2134

Uniform integrability

Last Update:

Non-UI sequence of RVs. The area under the strip is always equal to 1, but X n → 0 {\displaystyle X_{n}\to 0} pointwise....

Word Count : 2166

Lower envelope

Last Update:

In mathematics, the lower envelope or pointwise minimum of a finite set of functions is the pointwise minimum of the functions, the function whose value...

Word Count : 302

Loop group

Last Update:

a group of loops in a topological group G with multiplication defined pointwise. In its most general form a loop group is a group of continuous mappings...

Word Count : 568

Convergence of random variables

Last Update:

the sequence of corresponding characteristic functions {φn} converges pointwise to the characteristic function φ of X. Convergence in distribution is...

Word Count : 5157

Convergence of Fourier series

Last Update:

to occur. Determination of convergence requires the comprehension of pointwise convergence, uniform convergence, absolute convergence, Lp spaces, summability...

Word Count : 3622

Fourier series

Last Update:

{\displaystyle R[n],} n ∈ Z , {\displaystyle n\in \mathbb {Z} ,} The pointwise product: h P ( x ) ≜ s P ( x ) ⋅ r P ( x ) {\displaystyle h_{_{P}}(x)\triangleq...

Word Count : 10850

Information theory

Last Update:

{p(x,y)}{p(x)\,p(y)}}} where SI (Specific mutual Information) is the pointwise mutual information. A basic property of the mutual information is that...

Word Count : 7088

Modes of convergence

Last Update:

define pointwise Cauchy convergence, uniform convergence, and uniform Cauchy convergence of the sequence. Pointwise convergence implies pointwise Cauchy-convergence...

Word Count : 928

PDF Search Engine © AllGlobal.net